Magnetism of the S=1 Heisenberg antiferromagnets on the spatially anisotropic square lattice has been scarcely explored. Here, we report a study of the magnetism, specific heat, and thermal conductivity on Ni[SC(NH2)2...
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Magnetism of the S=1 Heisenberg antiferromagnets on the spatially anisotropic square lattice has been scarcely explored. Here, we report a study of the magnetism, specific heat, and thermal conductivity on Ni[SC(NH2)2]6Br2 (DHN) single crystals. Ni2+ ions feature an S=1 rectangular lattice in the bc plane, which can be viewed as an unfrustrated spatially anisotropic square lattice. A long-range antiferromagnetic order is developed at TN=2.23 K. Below TN, an upturn is observed in the b-axis magnetic susceptibility and the resultant minimum might be an indication for the XY anisotropy in the ordered state. A gapped spin-wave dispersion is confirmed from the temperature dependence of the magnetic specific heat. Anisotropic temperature-field phase diagrams are mapped out and possible magnetic structures are proposed.
A remote automatic monitoring system for high and steep slope based on FBG tilt sensor was established along Shuohuang railway, and an FBG tilt sensor with a high sensitivity was developed in this monitoring system. T...
A remote automatic monitoring system for high and steep slope based on FBG tilt sensor was established along Shuohuang railway, and an FBG tilt sensor with a high sensitivity was developed in this monitoring system. The monitoring system is running smoothly, and the monitoring results show that the maximum deformation of the slop is less than 2 mm in the rainy season, slope slip occurs at the location of 9.5 meters above, the overall deformation of slope is small, and the slope is steady.
Magnetism of the S = 1 Heisenberg antiferromagnets on the spatially anisotropic square lattice has been scarcely explored. Here we report a study of the magnetism, specific heat, and thermal conductivity on Ni[SC(NH2)...
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Based on full-scale segment model tests of the abnormally shaped anchorage zone of the Maling River cable-stayed bridge pylon and FEM analysis, its mechanical and deformation properties were obtained, and the validity...
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Based on full-scale segment model tests of the abnormally shaped anchorage zone of the Maling River cable-stayed bridge pylon and FEM analysis, its mechanical and deformation properties were obtained, and the validity of FEM analysis was *** optimal layout of prestressed tendons in the anchorage zone was obtained by using the strut-and-tie method (STM).The comparison FEM analysis between the full-scale segment model and the optimal prestressed tendons model show that:the optimal model not only saves prestressed tendons, but also achieves the same cracking resistance; STM method is reliable and accurate in the analysis of the abnormally shaped anchorage zone of cable-stayed bridge pylon.
Recently, the ultra-high temperature electrochemistry (UTE, about >1000 °C) has emerged, which represents an exploration to extend the temperature limit of human technology in electrochemical engineering. UTE ...
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Recently, the ultra-high temperature electrochemistry (UTE, about >1000 °C) has emerged, which represents an exploration to extend the temperature limit of human technology in electrochemical engineering. UTE has far-reaching impact on revolutionary low-carbon metal extraction and the in situ production of oxygen for deep-space exploration. It is hence of urgency to systematically summarize the development of UTE. In this Review, the basic concepts of UTE and the physicochemical properties of molten oxides are analyzed. The principles in the design of inert anodes for the oxygen evolution reaction in molten oxides are discussed, which forms a solid basis for the in situ production of oxygen from simulated lunar regolith by UTE. Furthermore, liquid metal cathodes for revolutionary titanium extraction and ironmaking/steelmaking are highlighted. With emphasis on the key challenges and perspectives, the Review can provide valuable inspiration for the rapid advancement of UTE.
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